A three-hinged parabolic arch of span ‘l’ and rise ‘h’ is subj – McqOptions

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1.	A three-hinged parabolic arch of span ‘l’ and rise ‘h’ is subjected to u.d.l. of intensity ‘ω’, then the horizontal thrust at the supports is
A.	\(\frac{{\omega {l^2}}}{{8h}}\)
B.	\(\frac{{\omega l}}{h}\)
C.	\(\frac{{\omega l}}{{8{h^2}}}\)
D.	\(\frac{{\omega hl}}{8}\)
Answer» B. \(\frac{{\omega l}}{h}\)

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